How to exapnd the tree upto second level

I am populating tree with dynamic XML which is coming from server side. I am displaying tree to the user using DHTML dhtmlXTreeObject. Everything works fine. But when I display the tree it is just displaying the root node i.e., first level of the tree. My requirement is to expand the tree up to second level. How can I do this? Please help me.

Thanks in advance,


You can issue opening command from XML or javascript

In javascript


or , by XML


I did it on the XML. It worked.